document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=707866>Question 707866</A>: <I><SPAN STYLE=\"word-break: break-all;\"> f(x)=(3x^2)+5\r<BR>\n" );
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document.write( "If t is a number find f(t+1)  and f(t-1) Simplify your answers.\r<BR>\n" );
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document.write( "I am totally lost. :( Please help, thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #435894 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=435894\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Here is how to find your way:\r<BR>\n" );
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document.write( "replace the variable, x, with the number t+1, and replace the variable, x, with the number t-1.  Evaluate the function for each case.  The key idea is to use substitution.  \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28t%2B1%29=%283%28t%2B1%29%5E2%29%2B5 ALIGN=MIDDLE  ALT=\"f%28t%2B1%29=%283%28t%2B1%29%5E2%29%2B5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%28t%5E2%2B2t%2B1%29%2B5 ALIGN=MIDDLE  ALT=\"3%28t%5E2%2B2t%2B1%29%2B5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3t%5E2%2B6t%2B3%2B5 ALIGN=MIDDLE  ALT=\"3t%5E2%2B6t%2B3%2B5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3t%5E2%2B6t%2B8 ALIGN=MIDDLE  ALT=\"3t%5E2%2B6t%2B8\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and maybe you complete the square to get standard form if you wish to.<BR>\n" );
document.write( "That was for x=t+1.\r<BR>\n" );
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document.write( "Now do the same using t-1 in place of x.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28t-1%29=%283%28t-1%29%5E2%29%2B5 ALIGN=MIDDLE  ALT=\"f%28t-1%29=%283%28t-1%29%5E2%29%2B5\"   DISABLED_style= \"max-width:90%; height:auto;\" >,<BR>\n" );
document.write( "...and you know what to do... </SPAN>\n" );
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